title: Dopamine 2 receptor C957T and catechol-o-methyltransferase Val158Met polymorphisms are associated with treatment response in electroconvulsive therapy.
abstract: Alterations in dopamine levels and dopamine receptors in brain are suggested to be associated with treatment response in electroconvulsive therapy (ECT). Dopamine 2 receptor gene (DRD2) polymorphism C957T (rs6277) and cathechol-o-methyltransferase (COMT) polymorphism Val158Met (rs4680) interaction was studied in 118 patients suffering from major depressive disorder (MDD) treated with ECT and 383 healthy controls. It was found that the combination of COMT Met allele and DRD2 T allele predicted more severe depression in those already affected but did not predict the risk of depression when compared to normal population. The genotype modified the response to ECT. The patients with TT genotype of D2 receptor gene C957T polymorphism combined with COMT gene polymorphism Met/Met genotype did not achieve remission as often as those with CC genotype of DRD2 C957T combined with COMT Val/Val genotype. Thus the interaction of these polymorphisms may be associated with response to ECT.
authors.affiliation: University of Tampere, Medical School, 33014 University of Tampere, Finland. kaija.huuhka@pshp.fi
authors.forename: Kaija
authors.initials: K
authors.lastname: Huuhka
authors.forename: Sami
authors.initials: S
authors.lastname: Anttila
authors.forename: Martti
authors.initials: M
authors.lastname: Huuhka
authors.forename: Jarmo
authors.initials: J
authors.lastname: Hietala
authors.forename: Heini
authors.initials: H
authors.lastname: Huhtala
authors.forename: Nina
authors.initials: N
authors.lastname: Mononen
authors.forename: Terho
authors.initials: T
authors.lastname: Lehtimäki
authors.forename: Esa
authors.initials: E
authors.lastname: Leinonen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D002394:Catechol O-Methyltransferase / Q000235:genetics*; D016009:Chi-Square Distribution; D003865:Major Depressive Disorder / Q000235:genetics* / Q000628:therapy*; D004565:Electroconvulsive Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008715:Methionine / Q000235:genetics*; D008875:Middle Aged; D011110:Polymorphism, Genetic / Q000235:genetics*; D017448:Receptors, Dopamine D2 / Q000235:genetics*; D014633:Valine / Q000235:genetics*; D055815:Young Adult
chemical_list: D017448:Receptors, Dopamine D2; D008715:Methionine; D002394:Catechol O-Methyltransferase; D014633:Valine